A touch panel has a transparent substrate, a conductive film; a protective layer which is provided on the conductive film to protect the conductive film; and a display device which has a display unit. the conductive film includes: a transparent substrate; a detecting portion provided on at least one surface of the transparent substrate and is provided with a mesh pattern formed of thin metallic wires; and a peripheral wiring portion provided on at least one surface of the transparent substrate and is electrically connected to the detecting portion, a region where the detecting portion is provided is set as a first region and a region other than the first region is set as a second region in the transparent substrate, a wire width change region is present in at least a part of a boundary region including a boundary line between the first region and the second region.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The touch panel according to claim 1 , wherein the boundary region is a region including the boundary line and extending across the first region and the second region.
3. The touch panel according to claim 2 , wherein the wire width change region is present throughout the entire boundary region.
4. The touch panel according to claim 2 , wherein the boundary region has a quadrangular shape, and the wire width change region is present at a part of at least one side of the quadrangular shape.
5. The touch panel according to claim 4 , wherein the detecting portion has a plurality of detecting electrodes, the peripheral wiring portion has a plurality of peripheral wires, and the plurality of detecting electrodes are electrically connected to the plurality of peripheral wires, respectively, and the wire width change region is present in the boundary region of a detecting electrode, to which the longest peripheral wire is connected, among the plurality of detecting electrodes.
6. The touch panel according to claim 5 , wherein the detecting portion has a dummy electrode which is electrically insulated from the detecting electrode.
7. The touch panel according to claim 2 , wherein the detecting portion has a plurality of detecting electrodes, the peripheral wiring portion has a plurality of peripheral wires, and the plurality of detecting electrodes are electrically connected to the plurality of peripheral wires, respectively, and the wire width change region is present in the boundary region of a detecting electrode, to which the longest peripheral wire is connected, among the plurality of detecting electrodes.
8. The touch panel according to claim 1 , wherein the wire width change region is present throughout the entire boundary region.
9. The touch panel according to claim 8 , wherein the detecting portion has a plurality of detecting electrodes, the peripheral wiring portion has a plurality of peripheral wires, and the plurality of detecting electrodes are electrically connected to the plurality of peripheral wires, respectively, and the wire width change region is present in the boundary region of a detecting electrode, to which the longest peripheral wire is connected, among the plurality of detecting electrodes.
10. The touch panel according to claim 1 , wherein the boundary region has a quadrangular shape, and the wire width change region is present at a part of at least one side of the quadrangular shape.
11. The touch panel according to claim 1 , wherein the detecting portion has a plurality of detecting electrodes, the peripheral wiring portion has a plurality of peripheral wires, and the plurality of detecting electrodes are electrically connected to the plurality of peripheral wires, respectively, and the wire width change region is present in the boundary region of a detecting electrode, to which the longest peripheral wire is connected, among the plurality of detecting electrodes.
12. The touch panel according to claim 11 , wherein the detecting portion has a dummy electrode which is electrically insulated from the detecting electrode.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
January 28, 2019
May 26, 2020
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